let vm = new Vue({
    el: '#app',
    //修改Vue读取变量的语法
    delimiters: ['[[',']]'],
    data: {
        username: '',
        password: '',
        password2: '',
        mobile: '',
        allow: '',
        image_code_url: '',
        uuid: '',
        image_code: '',
        sms_code_tip: '获取短信验证码',
        send_flag: false,
        sms_code: '',

        error_name: false,
        error_password: false,
        error_password2: false,
        error_mobile: false,
        error_allow: false,
        error_image_code: false,
        error_sms_code: false,

        error_name_message: '',
        error_mobile_message: '',
        error_image_code_message: '',
        error_sms_code_message: '',
    },
    mounted(){// 页面加载完会被调用的
        // 生成图形验证码
        this.generate_image_code();
    },
    methods: {
        //发送短信验证码
        send_sms_code(){
            // 避免恶意用户频繁的点击获取短信验证码的标签
            if (this.send_flag == true){
                return;
            }
            this.send_flag = true;

            this.check_mobile();
            this.check_image_code();
            if (this.error_mobile == true || this.error_image_code == true){
                this.send_flag = false;
                return;
            }

            let url = '/sms_codes/' + this.mobile + '/?image_code=' + this.image_code + '&uuid=' + this.uuid;
            axios.get(url, {
                responseType: 'json'
            })
                .then(response => {
                    if (response.data.code == '0'){
                        //展示倒计时60秒效果
                        let num = 60;
                        let t = setInterval(() => {
                            if (num == 1){
                                clearInterval(t);
                                this.sms_code_tip = '获取短信验证码';
                                this.generate_image_code();
                                this.send_flag = false;
                            } else {
                                num -= 1;
                                this.sms_code_tip = num + '秒';
                            }
                        }, 1000)
                    } else {
                        if (response.data.code == '4001'){// 图形验证码错误
                            this.error_image_code_message = response.data.errmsg;
                            this.error_image_code = true;
                        } else {// 4002 短信验证码 错误
                            this.error_sms_code_message = response.data.errmsg;
                            this.error_sms_code = true;
                        }
                        this.send_flag = false;
                    }
                })
                .catch(error => {
                    console.log(error.response);
                    this.send_flag = false;
                })


        },
        //生成图形验证码
        generate_image_code(){
            // 生成UUID。generateUUID() : 封装在common.js文件中，需要提前引入
            this.uuid = generateUUID();
            // 拼接图形
            this.image_code_url = '/image_codes/' + this.uuid + '/';
        },

        //校验用户名
         check_username(){
             let re = /^[a-zA-Z0-9_-]{5,20}$/;
             if (re.test(this.username)){
                 this.error_name = false;
             } else {
               this.error_name_message = "请输入5-20个字符的用户名";
               this.error_name = true;
             }

             //判断用户名是否重复
             if (this.error_name == false){
                 let url = '/usernames/' + this.username + '/count/';
                 axios.get(url, {
                     responseType: 'json'
                 })
                     .then(response => {
                         if (response.data.count == 1){
                             this.error_name_message = '用户名已存在';
                             this.error_name = true;
                         } else {
                             //用户名不存在
                             this.error_name = false;
                         }
                     })
                     .catch(error => {
                         console.log(error.response);
                     })
             }
         },
        //校验密码
        check_password(){
            let re = /^[0-9A-Za-z]{8,20}$/;
            if (re.test(this.password)){
                this.error_password = false;
            } else {
                this.error_password = true;
            }
        },
        //校验确认密码
        check_password2(){
            if (this.password != this.password2){
                this.error_password2 = true;
            } else {
                this.error_password2 = false;
            }
        },
        //校验手机号
        check_mobile(){
            let re = /^1[3-9]\d{9}$/;
            if (re.test(this.mobile)){
                this.error_mobile = false;
            } else {
                this.error_mobile_message = '您输入的手机号格式不正确';
                this.error_mobile = true;
            }

            //判断手机号是否重复
            if (this.error_mobile == false){
                let url = '/mobiles/'+ this.mobile + '/count/';
                axios.get(url, {
                    responseType: 'json'
                })
                    .then(response => {
                        if (response.data.count == 1){
                            this.error_mobile_message = '手机号已存在';
                            this.error_mobile = true;
                        } else {
                            this.error_mobile = false;
                        }
                    })
                    .catch(error => {
                        console.log(error.response);
                    })
            }
        },
        // 校验图形验证码
        check_image_code(){
            if (this.image_code.length !== 4){
                this.error_image_code_message = "请输入图形验证码";
                this.error_image_code = true;
            } else {
                this.error_image_code = false;
            }
        },
        //校验是否勾选协议
        check_allow(){
            if(!this.allow){
                this.error_allow = true;
            } else {
                this.error_allow = false;
            }
        },
        //监听表单提交事件
        on_submit(){
            this.check_username();
            this.check_password();
            this.check_password2();
            this.check_mobile();
            this.check_allow();

            if (this.error_name == true || this.error_password == true || this.error_password2 == true
            || this.error_mobile == true || this.error_sms_code == true || this.error_allow == true){
                //禁用表单的提交
                window.event.returnValue = false;
            }
        },
    }
})